Table 2. IEMG during the pre-activation phase (unit: %MVC).
175g 255g 335g 415g p-value
Vastus lateralis 5±0.01 4±0.01 4±0.02 4±0.01 0.738
Vastus medialis 5±0.02 4±0.01 4±0.01 5±0.01 0.302
Rectus femoris 8±0.04 8±0.03 9±0.04 9±0.03 0.339
Biceps femoris 21±0.04 22±0.04 23±0.07 20±0.04 0.126
Semitendinosus 20±0.03 20±0.04 22±0.06 21±0.05 0.362
Tibialis anterior 28±0.05 20±0.08 24±0.10 24±0.08 0.008*
Gastrocnemius lateralis 8±0.04 8±0.04 8±0.04 9±0.04 0.932
Gastrocnemius medialis 7±0.03 7±0.05 7±0.06 8±0.08 0.987
Soleus muscles 7±0.03 5±0.04 6±0.04 6±0.04 0.312
* Significant differences (p<0.05) between shoes of different mass during the pre-activation phase.